The USPS CASS 3553 report must be given to the USPS along with the mailing to qualify for certain discounts. The report contains information about the software you used for CASS processing, information about your name-and-address list, information about your output file, information about the mailer, and other statistics about your mailing. For detailed information about USPS Form 3553, see www.usps.com.
For more information about CASS settings see CASS Certified Processing. For instructions on how to use reports, see the Spectrum Technology Platform Dataflow Designer Guide.